Abracs Dry Diamond Core Bits are rotary cutting tools designed to drill clean, accurate holes in hard materials where water cooling is impractical or unavailable. Their primary use is creating service penetrations and fixture holes in tile, porcelain, brick, block, concrete and some natural stone using a handheld drill, core drill or angle grinder equipped with the correct arbor.

Each core bit comprises industrial synthetic diamond grit embedded in a metal-bond matrix mounted on a precision-machined steel barrel. The diamond cutting segments are permanently bonded to a high‑strength steel core that is finished with a corrosion‑resistant coating to extend service life. Available shank and arbor options include common thread types such as M14 and 5/8"-11 (UNC) to suit angle grinders and portable core drills; adaptors and straight shanks are available for other tool interfaces. Abracs Dry Diamond Core Bits are produced under an ISO 9001 quality management regime and conform to relevant EN/BS safety requirements for bonded abrasive products (BS EN 13236 where applicable).

Typical applications for these dry core bits are tile installers cutting holes for plumbing or electrical fixtures, bricklayers forming pass‑throughs for pipework, HVAC technicians enlarging service ducts and general construction trades creating cable or service entries. They are particularly suited to on‑site renovation work and retrofit applications where water use is restricted or where rapid, dust‑managed drilling is required.

Key benefits include the cutting ability of diamond for fast penetration and long life compared with carbide alternatives, a robust steel body that resists deformation under torque, and coatings that help resist corrosion in wet or damp environments. Dry operation avoids the need for water management but requires intermittent cutting, lower RPMs and effective dust extraction to maximise segment life and reduce airborne silica exposure. These core bits are compatible with standard arbors and adaptors used across construction and trade power tools.

Duchy Fasteners stocks Abracs Dry Diamond Core Bits in a broad range of diameters and pack quantities to suit tradespeople and contractors — from single items for one‑off jobs to trade packs for site teams. Please check the product listing for specific diameter, arbor and pack options.